This study examined the work of a principal of a Midwestern urban elementary school who used instructional supervision as a means of developing a learning community for adults. Implementing a variety of approaches adapted to the culture of the school, the principal crafted a process to meet the learning needs of 125 teachers and created an environment conducive to staff development. Also examined are other complementary practices in relation to the interconnected nature of supervision and staff development. A case-study approach (Merriam 1998) was used to generate detailed descriptions of how the principal used supervision as a "glue" to promote the development of a learning community. Data were collected during a two-year period through multiple methods: on-site observations, interviews with teachers and administrators, and artifact collection and analysis. This case study is offered as a means to further the research on the principal's role in building and nurturing a learning community.